In one sentence: Danielle, solo, gives three takeaways for building her own checklist from her father's: make it personal and aimed at your own blind spots, treat it as due diligence as well as a reminder, and keep it short with short answers.
Key ideas
- Why it exists. The checklist's job is to reduce risk so you don't permanently lose capital. Nobody grades it. [04:00–05:30]
- Takeaway 1: it's personal. Wording that is clear to Phil can mean nothing to Danielle. A list should expose the holes in your own thinking, so you need to write items that force you to fill them. [05:00–07:00]
- "Of course" is a warning sign. When she thinks "of course customers love it" she knows she's being lazy and needs evidence. [06:00–07:00]
- Takeaway 2: it's also due diligence. It does double duty, a memory aid and a research prompt. When you don't know which questions to ask about a company, the list supplies them (for example, check ROIC). [07:00–09:00]
- Adapt the items, not the idea. Phil's "my kids would be proud" becomes "my friends would be proud" if you have no kids. Its job is to stop you skipping a basic requirement. [08:00–09:00]
- Takeaway 3: keep it simple. Long lists don't get started or finished. Items that demand one sentence, a yes/no or a list of three work because you either know it or you don't. [09:00–13:00]
- Brevity also screens companies. If you can't say what a company does in one sentence, either you don't understand it or the company is scattered. [11:00–12:00]
- What's next. The last section is story and inversion: ask "what if that's not true?" about everything you wrote. [13:00–14:00]
How it maps to RuleOne
- The R-U-L-E-S pass maps onto the site: Radar (/ and the screen), Understand (/stock/TICKER/ numbers), Event (the event watch). A personal checklist belongs next to each holding.
- A short, binary checklist suits a screen: the pass/fail columns do the same job as yes/no items.
Buffett, Munger and Graham links
- Munger's habit of checklists and mental models: "Poor Charlie's Almanack" (the talk on the psychology of human misjudgment) lists biases a checklist guards against.
- Atul Gawande's The Checklist Manifesto is the standard outside reference, though the episode doesn't mention it.
Words to know
- Due diligence: the research that confirms the facts behind your investment story.
- ROIC: return on invested capital, one of the Big Five numbers (mentioned in passing).
Try this
Write a five-line checklist for yourself with one sentence or yes/no per line, then run it on one company from All stocks. Note which line you could answer only with "of course" and go find the evidence.
Check yourself
- Why should a checklist be personal?
Answer
It should plug the gaps in your own thinking, and your blind spots differ from someone else's. - What makes a good checklist item?
Answer
A yes/no, one-sentence or three-item answer that you either know or don't. - What does "of course" signal?
Answer
Intellectual laziness. You assumed something and need to check it.
Short quotes
"Nobody's giving me a grade on finishing this list." (Danielle, ~07:00, auto-transcribed)